cisco 887 VAG+-K9 router ios upgrade

[Portfast]

I want to update my Cisco 887 router due to the following Cisco IOS IKEv1 Packet Handling Information Disclosure Vulnerabilit error.
However, I cannot update it for SPA ios that are in release and appear to be valid.
Example ios:c800-universallk9-mz.SPA.156-2.T2.bin

please help

CSCvb29204
CSCvb36055

[marce1000]

             - Why can you not update it ?

 M.

[Portfast]

bootsystem bootflash:
Although I show it with the command, it does not accept it and says it is not valid ios and switches to rommon mode.
Even if I try to open it with 0x2102, it does not open.
I need to switch to old ios with tftp

[Leo Laohoo]

I would not recommending upgrading to a "T" train unless someone is prepared for the consequences.

[Portfast]

Why should I not switch to ios about T train. Is there a url where I can read the results of this?
Thanks

[Leo Laohoo]

Cisco calls the "T" train "technology". 

All those who have first-hand experience on the instability of the "T" train calls it by a different nomenclature:  Terrible

Make sure the Service Contract (for TAC support) is up to date if the router is going to be running "T" train.

[Portfast]

Hi Friends,

Cisco has released a new update for this on Sep 22. In the last case, I could not choose which fixed software for the 887 VAG router. Can you help me

[SAMEHELSAMMAK]

boot-start-marker
boot system flash:c800-universalk9-mz.SPA.158-3.M2.bin
boot-end-marker

THAT IS THE CORRECT COMMAND

FLASH: NOT BOOTFLASH: